I think Madara will succeed in performing "Tsukyomi" but Naruto's will and power will counter the genjutsu and he will face Madara inside the genjutsu while everyone else is being manipulated and he will defeat Madara ending the genjutsu spelling out the end of the Fourth Great Ninja war. I then think he will be presented with the title of hokage and possible some sort of "Hero of the Allied Shinobi Force" Title or some like that. Might seem a bit far fetched but I thats how I think it will end!